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Proceedings Paper

Hybrid burst/packet switching architectures from IP NOBEL
Author(s): Helen C. Leligou; Gert Eilenberger; Lars Dembeck; Wolfram Lautenschlaeger; Stephan Bunse; A. Stavdas; J. Angelopoulos; Christina T. Politi
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Paper Abstract

In spite of its long term promise, all-optical switching is still plagued by high cost, low efficiency when handling bursty data traffic, immature management and protection and poor output port contention resolution leading to heavy loss. Given the current situation, hybrid approaches that keep the best features of optics, reverting to the electrical plane when expedient, constitute sensible interim steps that can offer cost-effective solutions along the road to an eventual all-optical core. Two such approaches developed in the framework of the European IP project NOBEL are presented in this work. The first is a quite mature solution that extends present day concepts to achieve multiplexing gain while keeping all the management and restoration benefits of SDH. The other mimics early LANs in executing a distributed switching via its electrical control plane using two-way reservations, thus restricting its applicability to smaller domains. Combining the two leads to a system fulfilling most of today's requirements for Tb/s core networks.

Paper Details

Date Published: 2 October 2006
PDF: 11 pages
Proc. SPIE 6388, Optical Transmission Systems and Equipment for Networking V, 63880C (2 October 2006); doi: 10.1117/12.691610
Show Author Affiliations
Helen C. Leligou, National Technical Univ. of Athens (Greece)
Gert Eilenberger, Alcatel SEL AG (Germany)
Lars Dembeck, Alcatel SEL AG (Germany)
Wolfram Lautenschlaeger, Alcatel SEL AG (Germany)
Stephan Bunse, Alcatel SEL AG (Germany)
A. Stavdas, Univ. of Peloponnese (Greece)
J. Angelopoulos, National Technical Univ. of Athens (Greece)
Christina T. Politi, Univ. of Peloponnese (Greece)


Published in SPIE Proceedings Vol. 6388:
Optical Transmission Systems and Equipment for Networking V
Benjamin B. Dingel; Ken-ichi Sato; Werner Weiershausen; Achyut K. Dutta, Editor(s)

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